Furnace.



W. T. SUMMERS.

' FURNAUE.

, APPLICATION FILED 00T. 23. 190e.

932,595. Patented Aug.31,19o9.

IIH

WILLIAM 'I'. SUMMERS, 6F CHICAGO, ILLINOIS.

runmicnt enanos;

lSpecification of Iietters Patent. Patentid Aug'. 31, 19.09.

`Application ledoctober 23, 1908. -Seria1No..e59,184.

To all 'whom it may concern.

'Be it known A,that I,-W1LL1AM T. SUMMERs, a citizen .of the United States, 'residing at Chicago, .in thercountyof'Cook and State of Iliinois, have invented certain new-and useful improvements in Furnaces, of which thel following is a specification.

This .invention relates toy certain new and useful improvements yin furnaces, and while it is more es. ecially-adaptedfor use-on locomotives ank while I have in the resent instance shown-its .embodiment in a ocomotive ,furnace and will-hereinafter describe itin connection therewith, yety it isl applicable to various kinds ofurnacesfand lfor this reason I do not-desire to -be understood as vlimiting myself yin its application to .any 'speciiic form of furnaces or to furnaces for-any parpurposegf-and lit -consists in certain' peculiarities of the -construction,novel ar rangement, and operation of the various.

ticular parts lthereof, as will be hereinafter more fully setforth and specicallylelaimed.

nacesloi-variouslkinds so asto effect a great vsaving in the-fuel consumed, and also todiminish or substantially prevent the forma-l tion of 1black smoke.

vide means of the above-named general c aracter-Which shall -be sim le and inexpensive in construction, strong, dbrable and eiiicient in operatiomvand which may be operated by t e -fireman or-engineer at his station at the front of the furnace.

- Other objects and advantages of the in?v vention will` be disclosed in the s'ubjoined `description and en lana-tion.

In order to cnab e others skilled in the art to which my invention pertains', to-make and use the same, I will now proceed to describe it, referring to the accompanying drawings,

in which Figure lis a longitudinal 'vertical sectionaly tributing bridge or damper, and the means .ffor `operating the latter showing by ldotted lines the position to which the' bridge or damper -ma :be moved when not in use; and Fig. 4 is a etached plan view ofthe blow-er.

Like numerals of reference,- refer to corresponding parts throughout the derent views ofthe drawings. Y

vThe .reference numeral 5 designates the boiler .casing, .whichin' the present instance is shown as that of alocomotive and as being provided in its :front portion with a re-bo'x .6 having .a grate 7.01* the ordinary or any preferred construction; and ,an .ash-pit 8 of the-ordinary kind. The rear portion of the boiler-casing 5 and fire-box' is provided with a door-way 9 for the passage of fuel into the latter and .onto the grate 7, which door-way Imay he o encd and closed .by means .of adoor .1K0 which is provided on its Iinner `surface `with a downwardly and inwardly extending. deflecting late 11\for the f` purpose .of .causing the air a mitted through The principal object of -the-invention-is-to provide means for controlling and perfecting the combustion -of fuel and lfuel-gases infor-f theapertures 12 Tof the ,door 10 to 'be dis- .charged downwardly against the fuel on the grate. .-Communicatingat :their front ends with the rear portion of the {ire-box 6 are a ser-ies of fire-tubes y13-which communicate at .their other .ends with the ,smoke-box 14- of the locomotive. This box is provided with Another object of the invention is to ro-y well as the stack 15, is supported on a hori.

zontall dis ed iioor 17 1n the u er ortion ofythe gii1Soke-box,which ooimdxtdhds from the front end .of said box to the rearend thereof, asis clearly shown in Figs. 1 and 2 of -lthe drawings. Connected is a .downwardly an partition 18 which is.l ward extension `19 ocated horizontally across the'smoke-bx. The front of the extension 19 is downwardly deflected as at. 2.0, see Fig.' l of the drawings.- transversely of the iirebox` and connected at its lower end to the lupper portion of the front end of the extension or iioor 1,9 is a screen or seive 21 which will-prevent einders passing out through' the petticoat-pipe and stack. The floor Vor` extension 19 1s ro vided with a central opening in which is located the upper portion ofan exhaust nozzle 22 which 1s mounted on the floor of tlie smoke-box.. and is --preferably provided with forwardly extended rovided with 4a -fory at its upperA end to the' lower front dportion of the floor 17 Extending.

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a verticalpartition 23 which extends from, its lower end upwardly into the contracted portion of the nozzle, as is clearly shown in lFig. 2 of the drawings. Fitted on the upper end of the nozzle -22 and resting on the floor or extension 19 is a plate 24whi`ch carries an upwardly tapered nip le or extension 25 Which registers with tie upper end of the nozzle 22, and is located directly beneath the petticoat-pipe 16 andv smoke-stack. Secured to the plate 24 is a bracket 26 which extends upwardly so as to be about level with the upper end of the nipple 25, and has fulcrumed on its up er portion an arm 27 of a distributing bruige or damper 2S which is in the form of a cross, as is clearly shown'in Fig. 3, and is rigidly connected to the arm 27 near .its fulcrum. The bridge or damper 28 is disposed horizontally just above the nip le 25, and when in use will divide the nipp e into four passage-ways 29, 30, 31 and 32 so as to cause the exhaust steam, when discharged through the exhaust-pipes 33 and 34,-to pass out of the nozzle and nipple therefor in broken volunies, Aand first uon one side thereof and then on the other and at slight angles with respect to the petticoat-pipe and smokestack through which the exhaust steam will be caused to pass. Mounted on the ioor or extension 19 at a suitable distance to one side of the bracket 26 is another bracket 35 which has vertically .journaled therein the into the cab 39 of the locomotive.

lower end'of a rod 36 which is extended through the upper portion of the casing 5, and has `on its upper end a crank 37 to which is secured one end of a rod 38 which is extended forwardly of the casing 5 and The .frontend of the rod 38 is pivotally connected to a lever 40 which is fulcrumed on a suitable'support in the cab to be conveniently reached by the operator.

Itigidly secured to the lower portion ofthe i rod 36 is one end of a link 41 the other end of which is pivotally secured toanother link 42 which is pivotally connected to the arm 27 of the distributin bridge or damper. At a suitable distance a ove the nipple 25 of the exhaust nozzle is arranged a blower 43 which is substantially circular in shape, and has in its up er surface a series of perforations throug 1 which steam may be caused to pass when desired. g This blower may be supf ported with its circularwportion in a horizontal plane beneath the petticoat-pipe in any suitable manner, and has communication through a pipe 44 with a supply of steam. The up )er portion. of the pipe 44 1s bent substantially into a circle and, as before stated, a series of perforations is made in the upper surface of this circular blower, so that the steam at its E,highest pressure will pass from the rst perforation and the pressure of the jet emerging from the other perforations is successively less, consequently, the mass of steam which passesfrom the blower forms a rotating or gyrating current, which I have found to be most efective in promoting the combustion of the fuel so as to eilect a great saving in the consumption thereof. i

It will be obvious from the above description that the device is susceptible of considerable modification without material departure from the principles and spirit` of the invention, and for this'reason I do not desire to be understood as limiting myself to the precise form and arrangement of the several parts of the apparatus herein set forth in carrying outmy invention in practice, for example, in some instances I may omit the blower or the deiiecting plate 11, or both of them, and I may construct the bridge or damper so as to produce any desired number of passageways.

In order to operate the distributing brid e or damper 28 it is only necessary to move t e lever 40 in the proper direction which, through its connection with the crank 37 on the'rod 36, will cause the latter to turn, and by means of the links 41 and 42 and arm 27 of the bridge to move the latter back and forth above the nipple of the exhaustno'zzle, as will be readily understood by reference to' Fig. 3 of 'the drawings.

By Iemploying the movable skeletonframe-bridge or damper over the exhaust nozzle, it is a parent that the draft willnot only be great y increased thereby, but that the passage way from the nozzle will be divided into aplurality of compartments, and thus greatly facilitate the combustion of' the 'coal or fuel, especially when it is of an inferior quality or when the engine has been leaking.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters-Patent, isl 1. Th combination with a furnace having a smoke-box or compartment, of a stack leading therefrom, an exhaust-nozzle located below the lower end of the stack and contracted at its upper portion, an upwardly contracted nipple mounted on the upper portion of -the exhaust-nozzle, a )artition located in the nozzle and exten ed from its lower portion upwardly, a skeleton-framebridge pivotally mounted near the upper end of the -ni )ple and adapted to move in a horizontal plane over the top thereof and consisting of a series of radially disposed members, means to oerate saidbridge, and a blower arranged etween the lower end of the stack and the to J of the nipple and being provided with a su stantially circular hori- 1 zontal portion closed at one end and provided with a'series of steam ports in its up per surface.

The combination with a furnace having a smokc-box or compartment, of a vstack 130 leading therefrom, an exhaust nozzle located below the lowerend of the stack and contracted at its upper portion, an upwardly contracted nipple mounted on the upper portion of the ex aust nozzle, a skeleton-framebridge pivotall y mounted near the upper end of the nipple and adapted to move in a horizontal p ane over the top thereof and consisting of a series of radially disposedl mem- 10 bers, means to operate said bridge, and a l blower arranged between the lower end of the stack and the to of the nipple and being provided with a su stantially circular horizontalportion closed at one end and provided with a series of steam ports at its upper sur- 15 face.

, WILLIAM T. SUMMERS. Witnesses:

CHAs. C. TILLMAN, p M. A.. NYMAN.' 

